Emergency Number Day (United States)

U.S. law provides for the declaration of selected public observances by the President of the United States as designated by Congress or by the discretion of the President. Generally the President will provide a statement about the purpose and significance of the observance, and call on the people of the United States to observe the day "with appropriate ceremonies and activities". These events are typically to honor or commemorate a public issue or social cause, ethnic group, historic event or noted individual. However, there is no requirement that government or business close on these days, and many members of the general public may not be aware that such holidays even exist. Holidays proclaimed in this way may be considered a U.S. "national observance", but it would be improper to refer to them as "federal holidays". Many of these observances designated by Congress are authorized under permanent law under Title 36, U.S. Code, in which cases the President is under obligation to issue an annual proclamation.

The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean. The United States also asserts sovereignty over five major island territories and various uninhabited islands in Oceania and the Caribbean. It is a megadiverse country, with the world's third-largest land area and third-largest population, exceeding 340 million.